SEO and All around

The goal of the major algorithm updates of the past few years, which Google Google engineers named Penguin and Panda, respectively, is pretty specific:

To show high-quality, highly relevant search results to consumers. That means web pages that have original and valuable content show up higher in search engine results and consequently get more attention and clicks from consumers.

Web pages that the algorithm deems less valuable show up lower and get less attention and clicks.

It is about building great content, creating something that people want. That is the stuff search engines are looking for.